Fig. 6From: Synchronous timing of return to breeding sites in a long-distance migratory seabird with ocean-scale variation in migration schedulesThe relationship between duration of each period and the timing of its start in Arctic Skuas tracked from breeding areas in the North Atlantic to wintering areas in the Atlantic. Thick lines show overall slope estimates, thin lines show regression lines per combination of breeding and wintering area. Note that the aspect ratio of all plots is 1, but the axis scales differBack to article page